Metrohm 797 VA Computrace Manual do Utilizador descarregar pdf (Página 69)

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3.2 VA measurement modes

797 VA Computrace – Software

CPVS - Cyclic Pulse Voltammetric Stripping

General:

CPVS or Cyclic Pulse Voltammetric Stripping is used to de-

termine organic additives in electroplating electrolytes. The CPVS

measuring mode can be set for the exploratory and determination

mode by selecting CPVS - Cyclic Pulse Voltammetric Stripping for

the Mode parameter in the EXPLORATORY SPECIFICATION or

WORKING METHOD SPECIFICATIONS window.

Description:

For Cyclic Pulse Voltammetric Stripping, the potential of an RDE

(e.g. Pt) is changed between different potentials in pulsed, discrete

steps in a plating bath. The current i is measured as a function of

the time t. The curves registered in the last cycles are stored and its

peaks can be evaluated using linear or horizontal baselines.

cath

Conditioning

Stripping

Cleaning

Conditioning

Stripping

Plating

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